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However during September and October the Berkshire attraction is running a series of Duplo Days aimed at preschoolers - with cheaper tickets on offer.

Online prices for 'yellow days' - which are most standard weekends in September and October - are from £35 to £40 or £50 on the gate, and 'blue days' - such as the October half term and the weekends before and after - are from £45 to £50 or £60 on the gate.

But during the Duplo Days, which run until October 30, adults can get admission for themselves and an under five for just £25.

And don't worry about brothers and sisters - up to two extra under fives will cost just £5 admission each. Under threes are free entry.

A spokesman for the resort said: "Enjoy a pre-schoolers paradise this Autumn with Duplo Days.